It depends on how far the plow crews are in plowing the road to Logan Pass. They typically plow weekdays, and often are finished before 5 pm, turning the “road closed” sign around at the Loop as they leave their work for the day. If you’re biking during the time they are plowing, you will not be able to go past the Loop. But if you’re biking when they are not plowing — for example, on the weekends and many Fridays — you will be able to go as far past the Loop as the plowing allows you to go.
It also depends on where you start.
If you’re going on a guided tour with us, we’ll leave from Lake McDonald Lodge or the Avalanche campground, 5.5 flat miles down the road. If we leave from Avalanche, the road is largely flat for the first 6 miles, with a slight climb. The views are stunning, especially without distracting vehicle traffic. Then, the elevation gain begins to pick up as you ascend the next 2 miles to the Loop. Upon reaching “The Loop,” the single hairpin turn on the west side of the Going to the Sun Road, we’ll gain another 3,000 feet in elevation as we climb the 9 final miles to Logan Pass — if the plows have gotten that far. The earlier in the season you visit, the further away the plows will be. If you are able to bike from Avalanche to Logan Pass, you will ride a total of about 34 miles.
Bike Rental Options
If you’re on a self-guided adventure, you can rent bikes at our office. Then, you can rent a bike carrier from us and drive to Avalanche.
You can also bike directly from here — we are located on the Gateway to Glacier Bike Path, which connects to the Going to the Sun Road. That’s approximately an additional 18.3 miles, one way, to your journey. The road will likely be open to vehicle traffic, at least to Lake McDonald. But again, it depends on the time of year and ever changing conditions in Glacier National Park. If you leave from our office and bike to Logan Pass, you will ride a total of about 70 miles.
A third option is to bike from our office to the Apgar Visitors Center and catch the bike shuttle, sponsored by the park’s fundraising partner, the Glacier National Park Conservancy, to the Avalanche parking lot. Currently, this shuttle only operates on the weekends in the spring. Donate to the Conservancy’s efforts here. Learn more about this shuttle’s hours of operation here.
Overall, you should know that it takes about 45 minutes for a reasonably fit person to ride from Sprague Creek to Logan Creek, and another 3 hours to ride from Logan Creek to Logan Pass. Coming down is faster, but it’s still at least a half a day’s adventure to bike the entirety of the alpine section.